Presumably Sicilian. I came across this in Camilleri L'altro capo del filo, but can't find any translation.
The context is a cop talking about a group of suspects they have just arrested for a vicious rape. He says «Dottore, aio 'na gana spavintosa e tirribili di scuglionari a pedate a tutti e cinco, colpevoli e 'nnuccenti». His boss says he has never heard him say anything so violent before...